<template>
  <div class="tab-control">
    <div
      v-for="(i, idx) in titles"
      :key="i"
      class="tab-control-item"
      :class="{ active: idx === currentIndex }"
      @click="itemHandler(idx)"
    >
      <span>{{ i }}</span>
    </div>
  </div>
</template>

<script>
export default {
  props: {
    titles: {
      type: Array,
      default () {
        return []
      }
    }
  },
  data () {
    return {
      currentIndex: 0
    }
  },
  methods: {
    // 点击切换事件
    itemHandler (idx) {
      // 将点击事件传到外面去
      this.currentIndex = idx
      this.$emit('tabHandler', idx)
    }
  }
}
</script>

<style lang="less" scoped>
.tab-control {
  display: flex;
  text-align: center;
  font-size: 15px;
  height: 40px;
  line-height: 40px;
  background-color: #fff;

  .tab-control-item {
    flex: 1;
  }

  .active {
    color: var(--color-high-text);

    span {
      padding: 5px;
      border-bottom: 3px solid var(--color-tint);
    }
  }
}
</style>
